# 自 5 月 7 日起在 Discourse 上无法重建应用

**URL:** https://meta.discourse.org/t/failing-to-rebuild-app-on-discourse-since-may-7/117121
**Category:** Self-hosting
**Created:** [2019年五月7日 20:21 UTC](https://meta.discourse.org/t/failing-to-rebuild-app-on-discourse-since-may-7/117121 "2019-05-07T20:21:47Z")
**Posts on this page:** 1
**Showing post:** 9

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### Author: ![Falco](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/falco/32/179432_2.png) [@Falco](https://meta.discourse.org/u/Falco)
#### Post date: [2019年五月8日 16:16 UTC](https://meta.discourse.org/t/failing-to-rebuild-app-on-discourse-since-may-7/117121/9 "2019-05-08T16:16:12Z")

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That is not a plugin, that is a theme.

Themes are installed in the web interface at `/admin/customize/themes` and can’t ever be added to the `app.yml`.

See:

> [@Installing a theme or theme component](https://meta.discourse.org/t/how-do-i-install-a-theme-or-theme-component/63682):
>
> bookmark This is a guide for installing and managing themes and theme components in Discourse. person_raising_hand Required user level: Administrator Installing and customizing themes can significantly improve the look and feel of your Discourse site. You can easily import and manage themes and their components through the Discourse admin panel. This guide covers: Importing new themes and theme components Adding theme components to a theme Managing automatic updates Additional resourc…

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